Brea Orange County Plumbing Heating and Air Conditioning also serves La Habra Heights CA :: Plumbing-Brea-CA.com FYI: Heating and Air Conditioning Checklist: Cooling Specific: Actions To Do Yourself: Once a month, change the air filters, of your furnace or heat pump, as well as your central air conditioner. :: Plumbers :: Property Management Heating and Airconditioning Specialists :: BreaOrangeCountyPlumbingHeatingAirConditioning.com